Shoe-polisher.



'PA'I'ENTED MAY 21, 1907.

' M.-CHRISTENSON..

, SHOE POLISHER.

APPLICATION TILED my 25, 1906.

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No. 854,407. PATENTED MAY 21, 1907.

' M. CHRISTENSON.

SHOE POLISHBR APPLICATION FILED MAY 25, 1906.

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No. 854.407. v PATENTBD MAY 21, 1907.

M. OHRISTBNSON.

SHOE POLISHBR. APPLICATION FILED MAY 25, 1906,

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UNITED STATES PATENT OFFICE.

SHOE-POLISHER.

Specification of Letters Patent.

Patented May 21, 1907.

Application filed May 25,1906. Serial No. 318.662-

To all whom it may concern.-

Be it known that I, MARTIN CHRIsTENsoN, a citizen of the United States, residing at Minneapolis, county of Hennepin, and State of Minnesota, have invented certain new and useful Improvements in Shoe-Polishers, of which the following is a specification.

My invention relates to machines for polishing shoes, and its object is to improve the devices shown in my Patent No. 524,414, dated August 14, 1894, to render the mechanism easier of operation and more effective in its work.

My improvements are illustrated in the accompanying drawings, in which- Figure 1 is a plan view of a shoe-polishing machine containing my improvements; Fig. 2 is a side elevation of the same; Fig. 3 a rear elevation; Fig. 4 is a plan view of the inverted machine; Fig. 5 is an enlarged detail of the gearing shown in the lower portion of Fig. 2; and Fig. 6 is an enlarged detail plan View of the left-hand portion of Fig. 1, with portions broken away.

In the drawings 1 and 2, respectively, designate the upright and horizontal members of the frame which supports the operative de vices, and 3 a plate covering the frame and providing a suitably shaped foot rest 4. Four polishing brushes are employed; a brush 5 for thefront of the shoe, a brush 6 for the heel, and opposite brushes 7 for the sides.

The brush 5 is suspended from the horizontal portion of a bent arm 8 by a sleeve 9 which is held in place thereon by a set-screw 10, and is thereby rendered adjustable. The vertical portion of the arm is supported in an upright hollow tube- 11 by means of a setscrew 12, and is therefore adjustable in vertical direction. The tube 11 is carried on the end of a short horizontal rod 13 which is journaled in a pair of bearings 14, to permit it to be rocked, and it is held from axial movement by a sleeve .1 5 to which it is fastened by a pin 16, the ends of the sleeve abutting the journal boxes 14. These parts are mounted on a horizontal supporting-plate 17 that is secured to an upwardly inclined frame-piece 18 projecting forward from the horizontal frame members 2.

The heel brush 6 is carried by a pair of angularly bent rods 19, the upright end portions of which are secured to a plate 20 on the back of the brush. The horizontal lower portions of the rods extend through holes in a block 21 on the rear end of an operating arm 22, and they are held in place and are adjustable in the block by means of setscrews 23. l

The side brushes 7 are each supported by a vertically arranged angularly bent rod 24 and an inclined similar rod 25. To the brush back along its rear half is attached a plate 26 from which project horizontally outward three pins, a relatively long middle pin 27 and two shorter side pins 28. To the upper ends of the rods 24 and is attached a plate 29 providing three hollow tubes 30 within which the pins 27 and 28 extend. loosely. The ends of the pins 28 bear against coil springs 31, while the pin 27 extends entirely through the middle tube and the plate 29,

and has at its end a cotter or stud 32 to limit its movement inward. By this arrangement the force of the springs tends to press the brush inward, while the pin 27 serves as a guide as well as brace, and the cotter limits the extent of the inward movement. The ends of the horizontal portions of the rods 24 and 25 are secured to cross heads 33 which are slidable forth and back on pairs of guiderods 34, and the latter are secured to crosspieces 2 of the frame work. The pairs. of guide-rods converge somewhat toward the rear to conform the brush movements to the shape of the shoe sides.

For operating the brushes simultaneously and in the desired courses the following means'are provided. A transverse shaft 35, rocked by the operation of a hand lever 36,

is journaled in boxes 37 provided on opposite parts 1. On this shaft is fastened a segment 38 of a bevel gear, which meshes with a like segment 39 formed on one side of a depending sleeve 40. The sleeve is loosely supported on a pendent spindle 41 secured to the under side of the central frame member 2. A washer 42 and nut 43 hold the sleeve in place and allow it to be rotated on the spindle. From the upper portion of the sleeve or hub extends rearward the arm 22, which operates the heel brush, and at right angles to it a pair of arms 44 for operating the side brushes. The arms 22 and 44, together with the hub 40 which supports them, constitute a threearmed lever. At the front side of the hub, opposite the arm 22, is a bevel segment 45, which meshes with a like segment 46 on the end of a rocking shaft 47 for operating the toe brush. To the ends of the lateral arms 44 are pivotally connected rods 48 which in turn are pivoted to the under sides of thecross-heads 38 for the purpose of reciprocating the cross-heads and thereby operating the side brushes. The rock-shaft 47 has its inner journal-bearing in a hanger 49 pendent from the central frame piece 2; and its outer journal-bearing is provided by a groove in the under surface of the inclined frame piece 18 and a corresponding groove in the upper surface of the rear end of the extension plate 17. On the outer end of this rock-shaft is secured an outwardly projecting rork 50 for engaging the brush-carrying rod 8 to rock it and thereby operate the toe brush.

In operation, the rocking of the shaft 35 by swinging the hand lever to and fro, causes the bevel segments 38 and 39 to partially rotate and reverse the hub 40 and thereby oscillate the arms 22 and 44. Such movements of the arm 22 carry the heel brush back and forth in an. are around the shoe heel; and the like movements of the arms 44 serve to reciprocate the cross-heads 33 on their guiderods alternately in opposite directions to correspondingly reciprocate the side brushes. And the same rocking movement of the shaft 35 causes the bevel gears 45 and 46 to rock the shaft 47 which, by means of the fork 50, swings the rod 8 and thereby reciprocates the toe brush in an arc across the front portion of the shoe.

The arcs in which the toe and heel brushes are caused to move are'made to conform as nearly as practicable to the shapes of the parts of the shoe they are intended to polish, and the brushes are made of correspondingly curved shapes.

Having described my invention, what I claim and desire to secure by Letters Patent 1s 1. In a shoe polisher, the combination with a main shaft and means for rocking it, of a pivoted three-armed lever, bevel gears connecting the shaft and lever for causing the shaft movements to oscillate such lever, a rock-shaft, bevel gears connecting the lever and rock-shaft for causing the lever movements to rock said rock shaft, a set of polishing brushes, and means for communicating the motion of said lever and said rock-shaft to the set of polishing brushes, substantially as set forth.

2. In a shoe polisher, the combination with a main shaft and means for rocking it, of a pivoted three-armed lever, bevel gears connecting the shaft and lever for causing the shaft movements to oscillate such lever, a heel brush carried by the middle lever arm to operate in an are, a pair of side brushes, guiderods and cross-heads thereon, means connecting the side brushes and cross-heads, and pivotal connections between the latterand the adjacent lever arms for reciprocating the side brushes, substantially as set forth.

3. In a shoe polisher, the combination with a main shaft and means for rocking it, of a pivoted three-armed lever, bevel gears for causing the shaft movements to oscillate such lever, a heel brush carried by the middle lever arm to operate in an are, a pair of side brushes, guide-rods and crossheads thereon, brush supports attached to the cross-heads, and tubes and spring-actuated pistons and a guiding device connecting the rushes to their supports, substantially as set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses this 19th'day of May, 1906.

MARTIN OHRISTENSON. Witnesses:

P. H. GUNcKEL, II. A. BOWMAN. 

